Discrete spatial symmetries in energy derivatives
β Scribed by Ajit Banerjee; James O. Jensen
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 616 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0020-7608
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π SIMILAR VOLUMES
Based on a general formulation for discrete-time quantum mechanics, introduced by M. Khorrami (Annals Phys. 224 (1995), 101), symmetries in discrete-time quantum mechanics are investigated. It is shown that any classical continuous symmetry leads to a conserved quantity in classical mechanics, as we
We discuss discrete symmetries in several string compactification schemes. The same constraints on the light spectra as for Gepner models are found in various cases for non- \(R\) symmetries. Therefore it seems natural to conjecture that they always apply. The analogous constraints for \(R\) symmetr